Lenovo Power Management Driver v.1.67.12.16 download for Windows - deviceinbox.com
Identifikationsmöglichkeiten der Hardware – ThinkPad-Wiki
How To Find Driver and Install for UNKNOWN DEVICE - ACPI\VPC2004\0 - YouTube
Unknown device Lenovo G510! - eehelp.com
ThinkPad T530の不明なデバイスに対応 – guro_chanの手帳
HP PCs - HP 3D DriveGuard Is Displayed as an Unknown Device (ACPI\HPQ0004 or ACPI\HPQ6007) After Upgrade to Windows 10 Has Completed | HP® Customer Support